It is unlawful for any person to fail or refuse to attend a session of the municipal court to which he has been directed by ticket, summons or subpoena signed by a police officer, the municipal judge or other presiding officer of the municipal court, whether such person so ticketed, summoned or subpoenaed is directed to appear as a witness, defendant or for questioning in behalf of the court. It also is unlawful for any person, under signed bond to appear before such court at a time therein stated, to fail or refuse to so appear. It is likewise unlawful for any person to fail or refuse to attend or appear in the municipal court when ordered or directed so to do by the municipal judge when such order or directive has been given to such person in open court, whether such order or directive is in writing or verbal. The municipal judge may excuse any person so ticketed, summoned, subpoenaed, ordered, directed or bound over from attending such court if he considers the facts to justify such act on his part. (Prior code § 1-6-23)